In [Kleijn, J., Team Automata for CSCW - A Survey -, Petri Net Technology for Communication-Based Systems-Advances in Petri Nets, LNCS 2472, Springer, 2003, 295-320], Kleijn presented a survey of the use of team automata for the specification and analysis of phenomena from the field of computer supported cooperative work, in particular notions related to groupware systems. In this paper we present a survey of the use of team automata for the specification and analysis of some issues from the field of security. In particular, we show how team automata can adequately be used to model and verify various access control policies, multicast/broadcast communication protocols, and general (cryptographic) communication protocols.